Server having an interface for connecting to a server system and server system

1. A server with an interface for connecting to a server system, wherein

the server has a microcontroller unit having an acknowledgment device that generates an acknowledge signal for acknowledging a control command after said control command is transmitted from the server to a management bus, and

wherein the server system comprises a component carrier for holding several servers with a serial management bus and several servers that are connected via serial interfaces to the management bus, wherein one server is set up as a management server and the other servers are set up as data processing servers, wherein the server system is set up such that information is transmitted only in a unidirectional manner from the management server via the serial management bus to the data processing servers and the management server has a CPU, a bus driver and a microcontroller unit, the CPU being adapted to generate a control command, to send the control command to a bus driver that converts the control command from a bidirectional signal into a unidirectional signal and transmits the converted signal via the interface to the management bus, and the microcontroller unit being adapted as an acknowledgement device that, after sending a control command from the management server to the management bus, generates an acknowledge signal for acknowledging the sent control command.

2. The server according to claim 1 , wherein the server has a CPU that generates the control command and a bus driver that converts the control command from an internal bidirectional signal into a unidirectional signal and sends the control command as a unidirectional signal to the management bus.

3. A server system comprising a component carrier for holding several servers with a serial management bus and several servers that are connected via serial interfaces to the management bus. wherein one server is set up as a management server and other servers are set up as data-processing servers, wherein

the server system is set up such that information is transmitted only in a unidirectional manner from the management server via the serial management bus to the data-processing servers and the management server has an acknowledgment device that, after sending a control command from the management server to the management bus, generates an acknowledge signal for acknowledging the sent control command, and

wherein the server system comprises a component carrier for holding several servers with a serial management bus and several servers that are connected via serial interfaces to the management bus, wherein one server is set up as a management server and the other servers are set up as data processing servers, wherein the server system is set up such that information is transmitted only in a unidirectional manner from the management server via the serial management bus to the data processing servers and the management server has a CPU, a bus driver and a microcontroller unit, the CPU being adapted to generate a control command, to send the control command to a bus driver that converts the control command from a bidirectional signal into a unidirectional signal and transmits the converted signal via the interface to the management bus, and the microcontroller unit being adapted as an acknowledgement device that, after sending a control command from the management server to the management bus, generates an acknowledge signal for acknowledging the sent control command.

4. The server system according to claim 3 , wherein the protocol for sending control commands via the management bus is based on the I2C standard, wherein the acknowledge signal of the acknowledgement device corresponds to the acknowledge signal according to the I2C standard.

5. The server system according to claim 3 , wherein

the management bus includes two lines, wherein one line is provided for a clock signal (CLK) and the other line is provided for a data signal (DAT).

6. The server system according to claim 3 , wherein the server system has one or more additional data buses that connect the servers to each other, wherein data can be transmitted in a bidirectional manner via the data buses between the management server and the data-processing servers.

7. The server system according to claim 3 , wherein a data-processing server is set up to be connected or removed during continuous operation of the server system.

8. The server system according to claim 3 , wherein the management server has a CPU that generates the control command and a bus driver that converts the control command from an internal bidirectional signal into a unidirectional signal and sends the control command as a unidirectional signal to the management bus.

9. A server with an interface for connecting to a server system. wherein the server has a CPU, a bus driver and a microcontroller unit, the CPU being adapted to generate a control command, to send the control command to a bus driver that converts the control command from a bidirectional signal into a unidirectional signal and transmits the converted signal via the interface to a management bus, and the microcontroller unit being adapted as an acknowledgement device that generates an acknowledgement signal for acknowledging a control command after said control command is transmitted from the server to the management bus, and

wherein the server system comprises a component carrier for holding several servers with a serial management bus and several servers that are connected via serial interfaces to the management bus, wherein one server is set up as a management server and the other servers are set up as data processing servers, wherein the server system is set up such that information is transmitted only in a unidirectional manner from the management server via the serial management bus to the data processing servers and the management server has a CPU, a bus driver and a microcontroller unit, the CPU being adapted to generate a control command, to send the control command to a bus driver that converts the control command from a bidirectional signal into a unidirectional signal and transmits the converted signal via the interface to the management bus, and the microcontroller unit being adapted as an acknowledgement device that, after sending a control command from the management server to the management bus, generates an acknowledge signal for acknowledging the sent control command.

10. A server system comprising a component carrier for holding several servers with a serial management bus and several servers that are connected via serial interfaces to the management bus, wherein one server is set up as a management server and the other servers are set up as data processing servers, wherein the server system is set up such that information is transmitted only in a unidirectional manner from the management server via the serial management bus to the data processing servers and the management server has a CPU, a bus driver and a microcontroller unit, the CPU being adapted to generate a control command, to send the control command to a bus driver that converts the control command from a bidirectional signal into a unidirectional signal and transmits the converted signal via the interface to the management bus, and the microcontroller unit being adapted as an acknowledgement device that, after sending a control command from the management server to the management bus, generates an acknowledge signal for acknowledging the sent control command.